Patch "PM / Sleep: fix recovery during resuming from hibernation" has been added to the 3.10-stable tree

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This is a note to let you know that I've just added the patch titled

    PM / Sleep: fix recovery during resuming from hibernation

to the 3.10-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     pm-sleep-fix-recovery-during-resuming-from-hibernation.patch
and it can be found in the queue-3.10 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.


>From 94fb823fcb4892614f57e59601bb9d4920f24711 Mon Sep 17 00:00:00 2001
From: Imre Deak <imre.deak@xxxxxxxxx>
Date: Fri, 24 Oct 2014 20:29:10 +0300
Subject: PM / Sleep: fix recovery during resuming from hibernation

From: Imre Deak <imre.deak@xxxxxxxxx>

commit 94fb823fcb4892614f57e59601bb9d4920f24711 upstream.

If a device's dev_pm_ops::freeze callback fails during the QUIESCE
phase, we don't rollback things correctly calling the thaw and complete
callbacks. This could leave some devices in a suspended state in case of
an error during resuming from hibernation.

Signed-off-by: Imre Deak <imre.deak@xxxxxxxxx>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
 kernel/power/hibernate.c |    8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

--- a/kernel/power/hibernate.c
+++ b/kernel/power/hibernate.c
@@ -491,8 +491,14 @@ int hibernation_restore(int platform_mod
 	error = dpm_suspend_start(PMSG_QUIESCE);
 	if (!error) {
 		error = resume_target_kernel(platform_mode);
-		dpm_resume_end(PMSG_RECOVER);
+		/*
+		 * The above should either succeed and jump to the new kernel,
+		 * or return with an error. Otherwise things are just
+		 * undefined, so let's be paranoid.
+		 */
+		BUG_ON(!error);
 	}
+	dpm_resume_end(PMSG_RECOVER);
 	pm_restore_gfp_mask();
 	ftrace_start();
 	resume_console();


Patches currently in stable-queue which might be from imre.deak@xxxxxxxxx are

queue-3.10/pm-sleep-fix-recovery-during-resuming-from-hibernation.patch
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